I don't think that YouTube cites any sources that show there's scenarios where metabolism is significantly different for net weight and other health outcomes, w

I don't think that YouTube cites any sources that show there's scenarios where metabolism is significantly different for net weight and other health outcomes, when it comes to low fat vs low carbohydrate diets. There might be some genetic disorders causing some pathway to be inhibited, but on average, if we want to give generic advice for every individual, I think it's best to say to reduce calories and choose the appropriate method that satisfies your lifestyle and allows you to adhere to the diet, to improve your health. I don't think it's sustainable to do a keto diet if you live and partake in society. You might encounter many scenarios where food options are carb heavy, and in this case, keto is not an option whereas caloric restriction is.